HP Vectra XE320 hp vectra xe320, technical reference manual - Page 21

System Features Mass Storage Devices Hard Disk Drives A 3.5-inch hard disk drive is supplied on an internal shelf in some models. These hard drives can be provided with the PC. To see which other hard disk drives can be purchased as accessories for the XE320, refer to www.hp.com/desktops/products/accessories. 20GB Ultra-ATA 100 40GB Ultra-ATA 100 Average Seek Time (ms) 8.9 to 12.1 Track-to-Track Seek TIme (ms) 1.5 Full Stroke Seek Time (ms) 20 to 25 Rotational Speed (RPM) 5400 Buffer Size (MB) 2 To find out about Ultra-ATA 100 hard disk drive technology, refer to the Technical Reference Manual HP Business PC Technology. Floppy Disk Drives All models are supplied with a 3.5-inch floppy disk drive. Optical Drives Models may be fitted with a 48X Max-speed IDE CD-ROM drive. This drive can play standard CD-ROM discs, conforming to optical and mechanical standards as specified in the Red and Yellow Book. This drive can also be purchased as an accessory. Refer to: www.hp.com/desktops/products/accessories. To find out about CD-ROM and DVD drive technology, refer to the Technical Reference Manual - HP Business PC Technology. XE320 product description 21